Shuttle-shield for type-writing machines.



A. LOPEZ. SHUTTLE SHIELD FOR TYPE WRITING MACHINES.

' APPLICATION FILED JULY 30, 1913. 1,097,553

Patented Mayv 19, 1914,

' a BHEET$-BIIEBT 1.

A. LOPEZ. SHUTTLE SHIELD FOR TYPE WRITING MACHINES.

APPLICATION FILED JULY 30, 1913.

Patented May 19, 1914.

m mm 2 SHEETS-SHEET 2.

position surrounding the shuttle-carrying UNITED STATES PATENT OFFICE.

AR'IHUR LOPEZ, OF NEW YORK, N. 'Y., ASSIGNOR TO THE HAMMOND TYPEWRITER 00.,

p A QORPORATION OF NEW YORK.

SHUTTLE-SHIELD FOR TYPE-WRITING MACHINES.

fipecifleation of Letters Patent.

Application filed July 30, 1913. Serial No. 781,956.

To all whom it may concern Be it known that I, ARTHUR Lorna, a citizen of the United States of America, residing in New York, in the borough of Manhattan, county and State of New York, have invented certain new and useful Improvements in Shuttle-Shields for Type-Writing Machines, of which the following is a specification.

This invention relates to an improved shuttle-shield for typewriting machines, which is more especially intended to be used in connection with the Hammond typewriting machine, said shuttle-shield being so constructed that it can be easily detached from its supporting frame and applied thereto for guiding the ribbon and preventing the shifting of the same in upward or downward direction on the shield, so that the ribbon is held in the required position for printing in one or the other color of the same; and for this purpose the invention consists of a shuttle-shield provided with means for attaching it to the shuttle-shield frame, and with means arranged at the rear-sid of the same for guiding the ribbon and pre enting the shifting of the sameon the shield while being passed across the printing type from one spool to the other. The invention consists further of certain details of construction which will be fully described hereinafter and-finally pointed out in the claims.

In the accompanying drawings, Fi ure 1 represents a plan-view of my improve shuttle-shield and frame, showing the same in anvil of a Hammond machine, Fig. 2 is a detail front-view of the shuttle-shield, Fig. 3 is a rear-elevation of the same, Fig. 4 is a detail view, showing the shuttle-shield in position raised for removing it and placing the ribbon in position, taken on line 44, Fig. 1, and Figs. 5, 6 and 7 are detail views of parts of the mechanism.

Similar letters of reference indicate corresponding parts throughout the several figures of the drawings.

Referring to thedrawings, a represents the anvil, b the shuttle, h the hammer, s the shuttle-shield, r the ribbon and r the ribbonspools of'a Hammond typewriting machine. To the upper part of the frame f of the ma.- chine, encircling the-anvil, is applied a shuttle-shield frame g, which is hinged at its front-part of the frame f and provided at the hinge with an upwardly-projecting handle 72. by which, on being pressed downwardly, the shuttle-shield frame can be lifted with the ribbon into upwardly-incllned position, as shown clearly in dotted llnes in Fig. 4, said shuttle-shield frame be: ing locked in lowermost position by means of a spring-catch 9 which is attached at one side of said frame to the top-plateof the frame 7 of the machine and provided with a hook'g at its lower part which retains the shuttle shield frame in lowered position, for using one part of the ribbon. The catch has an upper hook g on which the frame 9 rests when the other part of the ribbon is used. a The shuttle-shield frame gis made of spring-metal, and is approximately U-shape, the main-portion of the arms being concentric with the anvil a and being provided at their front-ends with downwardly-bent hoolcshaped plates 5 which are attached by means of sockets '5 to the ends of the U- shaped shuttle-shield frame, said hookshaped plates being first bent in downward direction and them in upward direction, forming hooks k as shown-clearly in Fi 6. The shuttle-shield s is made of thin yielding sheet-metal and provided at its ends with inwardly-bent hooks 2' which are placed in position over the hook-shaped front-portions of the shuttle-shield frame 9'. The tensionof the frame 9 holds the shield taut. The shuttle-shield is provided in the usual manner at its center-portion with openings 0, o and a narrow connecting bridge 0 between said openings, one opening serving for printing in one color and the other for printing in the other color when a two-colored ribbon r is used. The shuttleshield is provided with a connecting bridge 0 at the lower edge and with an index-point 0 above the openings.

To the rear-side of the shuttle-shield are soldered or otherwise attached, symmetrically with the center-line of the shield passing through the printing openings 0, 0 two ribbon guides which are formed each of a V-shaped piece of which one leg w extends vertically across the rear-s de of the shield and above the same, while the other leg w extends at an inclination and is attached by solder te to the shield and provided at its upper end with a downwardlybent hook-shaped portion 'w as shown clearly in Fig. 2.- The ribbon is introduced under the hook-shaped portions of the guide=wires and passed between the vertical cross-legs across the openings in the shield. The bend at the lower portion of the guidewires serves for preventing the shifting of the ribbon in downward direction, while the inwardly-bent hook-shaped portions w prevent the shifting of the ribbon in upward direction. The ribbon is thus guided with one color across the upper opening 0, and with the other color across the lower printing-opening o in the shield. From the guide-wires the ribbon extendsthrough and is guided in the hooks k of the shuttle.

shuttle-shield frame, a shuttle-shield supported by the frame, and ribbon-guiding shield frame to the spools.

By the improved shuttle-shield the guide devices for the ribbon are considerably simplified and; rendered more effective. The ribbon can be readily removed and replaced in the guide devices of the shuttle-shield after lifting the frame from its normal position into elevated position, so as to provide for the removal of a used-up ribbon and putting on of a fresh ribbon, also for the convenience of removing the shuttleshield from time to time for wiping its rear-surface where it is in contact with the ribbon and removing any adhering ink from' the same... The small contact-surface of the guide-wires w requires for the fastening of e the same to the shield, only a small quantity of solder, and thus the temper of the German silver shield is not ,injuriously affected, but the shield retains its strength and spring character substantially unafl'ected.

I claim:

1. In a typewriting machine having a shuttle-shield frame, a shuttle-shield supported by the frame, and ribbon-guiding members at each side of the central part of the shield and each having a leg secured in an inclined position to the shield and having one side of the ribbon passing over it,

with the vertical member and having its free end disengaged, the disengaged free ends of the bent-over members enabling the insertion of the ribbon at either end of the inclined member.

2. In a typewriting machine having a members at each side of the shield and each having a leg secured in an inclined position to the shield and having one side of the ribbon passing over it, and having a second leg at one end of the inclined leg extending around the lower edge of the ribbon and curved over to extend vertically along the side of the ribbon other than that in contact with the inclined leg and beyond the upper edge of the ribbon to enable the ribbon to be engaged on the insertion of the same, said vertical leg being arranged in close proximity to the shield, and having'another I leg at the other end of the inclined leg curved over'the upper edge of the ribbon hook-shaped toward that side other than that contacting with the inclined leg and bent in a direction away from the central part of the shield. a

In testimony, that I claim the foregoing as my invention, I have signed my name in presence of two subscribing witnesses.

ARTHUR LOPEZ.

I Witnesses:

JOHN MURTAGH,

F. Hose. 

